The diameter of the smaller circle is a radius of the larger circle. What is the ratio of the smaller circle's area to the larger circle's area? Give your answer in fully simplified form. It should look like "x:y", where x and y are replaced by integers.

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23

we can't see all full 4 options, but if this is the full option, than the very left one is correct:

-2/5 * -3 3/4

remake the question, adding a picture of all the question, or write down the full left and right answers.

15 / 2 = 7.5

100 / 7.5 = 13.